Index
ABCR4, 168 Adriamycin, 86
Age-related macular degeneration (AMD), 97, 167–175
antioxidant and, 168, 171 dry stage, 167–168 incidence of, 167–168 and photoreactivity of
lipofuscin, 169–170 melanosome, 171
RPE susceptibility and adaptation to ROS, 171–172
wet stage, 168
Alkoxyl radical, 72, 96–97 Allopurinol, 185, 191 Alpha-tocopherol acetate, 160 Alzheimer’s disease, 40, 97 Amadorins, 98
Amadori rearrangements, 87–88 AMD. See Age-related macular
degeneration (AMD) Aminoguanidine, 98 AMPA-receptors, 99 Amyotrophic lateral sclerosis, 40 Anoxia, 177–179 Anthraquinones, 86 Antioxidants
AMD and, 168, 171
basal oxidant tone requirement, 19
[Antioxidants]
cooperative effects and cataract, 96–100
defence system, 13 definition, 13
diabetic retinopathy and, 159–164 dietary, 15, 20
modulation of cardiovascular disease, 11–23
oxidative events as cause of disease, 19–20
properties of melanin, 150–152 selection of, 22
strategies for future therapies, 18
supplementation and diet, 20–21 systems in mitochondria, 4
vitamins, 14–18. See also Antioxidant vitamins
Antioxidant Supplementation in Atherosclerosis Prevention study (ASAP), 18
Antioxidant vitamins atherosclerosis and, 16–18 cardiovascular disease and, 11–23
epidemiological and clinical studies, 17–18
experimental and animal studies, 16–17
209
210
Antioxidative strategies, for protection of cataract, 94–100
cooperative effects of antioxidative, 96–100
from oxygen stress, 94–96 Antioxidative therapies, strategies for, 22 AP-1, 12, 109
APOE, 168
Apoptosis signal-regulating kinase-1 (ASK-1), 7
ARE-Nrf2 signaling pathway, 14 Ascorbic acid, 13–15, 21, 57, 59–60, 65,
160, 183, 190 Atherogenesis, 15–16
Atherosclerosis, 11, 22–23, 40, 97, 100 and antioxidant vitamins, 16–18
and oxidative stress, 15–16
Autocrine signaling, and IFNg stimulation in EAU, 126–127
Beaver Dam Eye Study, 168 Benzoquinones, 86 Bestrophin, 168
Bilirubin, 13–14
Blue Mountain Eye Study, 168 Bone marrow-derived macrophages
(BM-Mj), generation of, 122 Bordetella pertussis toxin (PTX), 122 Bovine RPE-choroid complexes
antibody staining of tyrosinase in, 201 organ culture of, 198–199, 202
Bowman’s layer, 56
Brain, resistance to ischemia, 179–181 Bullous keratopathy, 61–63 Buthionine sulfoximine (BSO), 47–48
Caffeine, 99
Calcium-dependent protein kinase C (PKC), 187
Calcium dobesilate, 191
Cancer and oxidative stress, 11, 40 Cardiovascular disease
antioxidants
atherosclerosis and vitamins, 16–18 modulation of, 11–23
vitamins, 11–23
Index
[Cardiovascular disease] epidemiological and clinical studies,
17–18
oxidative stress and, 15–16 ROS and, 12–13
Carnitin, 15 b-carotene, 99, 160
Carotenoids, 13–14, 21, 81–82, 98, 168–169
Carrageenan-gamma radiation, 100 Caspase-3, 187
Catalase, 13, 35, 71–72, 179, 190–191
Cataract
diabetic events, 87–89
effects of antioxidants, 96–100 herbal extracts, 97–100 LDL oxidation, 96–98
effects of light, 83–86 experimental induction, 89
first biochemical signs of, 89–90 formation by light, 85
forms of, 83–84
intrinsic light reactions, 90 models for investigating topical
penetration rates, 91–94 modes of induction, 83–84 naphthalin induced, 89
prevention in model reactions in vitro and ex vivo, 90–92
protection by antioxidative strategies, 94–100
cooperative effects of antioxidative, 96–100
from oxygen stress, 94–96 protection from oxygen stress,
94–96
by detoxifying enzymes, 94–95 by phenolic derivatives, 95–96
protein glycosylation, 87–89 reductive events and, 86–87
Cataractogenesis, mechanisms of, 89 Ccl2, 168
CD18, 15
CD11b, 15
CD4+ T cell, 122, 142
CD4+ Th1 mediated disease, 121. Cell redox environment, 4
Index
Cell signaling
basal ROS tone for, 19 and gene expression, 8
Cellular glutathione analysis with CDNB, 50
DTNB, 48–50 mBBr, 48–50
concentrations modulation and determination, 45–52 determination methods, 48–50
diazenedicarboxylic acid reaction with, 47 experimental modulation, 46–48 menadione and concentration of, 50–52 reaction of diamide with, 47
reaction of diethyl maleate with, 47–48 Central retinal artery occlusion, 179 Ceruloplasmin, 13
Chemotaxis, 15 Chesapeake Bay Study, 168 Chlorodiazepoxides, 85
1-chloro-2,4-dinitrobenzoic acid (CDNB), 50
Chlorothiazines, 85
Choroidal neovascularization (CNV), 168 Collagen, 15
Cornea. See also Corneal diseases antioxidants, 58–60
ascorbic acid, 59–60
superoxide dismutases (SOD), 58–59 endothelium of, 57–58
stroma of, 57 Corneal diseases
bullous keratopathy, 61–63 endothelial cell loss after
phacoemulsification cataract surgery, 58, 64–65
endothelial cell loss in inflammatory eye diseases, 63–64
epithelium cell loss, 56–57
after phacoemulsification cataract surgery, 64–65
in inflammatory eye diseases, 63–64
Fuchs endothelial dystrophy, 61–63 keratoconus, 60–61
oxidants in, 55–65 ROS and, 55, 63–65
211
CR-6 (3,4-dihydro-6-hydroxy-7-methoxy- 2,2-dimethyl-1(2H)-benzopyran), 161–164
Cyclic photosystem I, 81 Cyclooxygenases-1 (Cox 1), 35 Cyclooxygenases-2 (Cox 2), 35 Cytochrome c, 169
displacement in EAU, 138–139, 142 location and function in mitochondria,
141–142 Cytokine analysis, 123
Cytosolic copper-zinc-containing SOD (SOD1), 58
Descemet’s membrane, 57 Desferrioxamine, 191
Detoxification, by enzymatic processes, 94–95
Diabetes mellitus, 159 Diabetic retinopathy, 179
and antioxidants, 159–164 electroretinogram and, 162–164 peroxynitrite scavengers, 160–162
Diclofenac, 99
Dietary antioxidants, 15, 20 Diethyl maleate (DEM)
cellular glutathione reaction with, 47–48 glutathione levels in cells exposed to, 52
Dihydro-thioctic acid, 91 Dihydroxyfumaric acid (DHF),
autoxidation of, 88 Dihydroxyphenylalanin (DOPA), 89 5,50-Dithiobis-2-nitrobenzoic acid
(DTNB), 48–49
Ebselen, 160, 164
Electroretinogram (ERG), and diabetic retinopathy, 162–164
Electroretinography and ischemia, 181 Ellman’s reagent, 48
ELOVLA4, 168
Endothelialleukocyte adhesion molecule (ELAM-1), 75
Endothelial nitric oxide synthase (eNOS), 12, 21–22, 108, 112, 186–187
Endotoxin induced uveitis (EIU), 111
212
Estrogens, 85 Eumelanin, 148, 153–154
Experimental autoimmune uveoretinitis (EAU)
autocrine signaling and IFN g stimulation in, 126–127
cytochrome c displacement from electron transport assembly in, 138–139, 142
IFNg stimulation in, 126–127 infiltrating macrophage function
during, 123–125
localization of nitrated retinal protein in, 137–139
nitration and release of cytochrome c in, 139
nitric oxide in, 107–114 pathogenesis, 111–113 pathology, 108–111
therapeutic strategies to reduce tissue damage, 113–114
TNF activation and, 121–128 peroxynitrite role in, 139–142 retinal microenvironment during,
123–125
retinal morphology and protein nitration during, 135–136
superoxide and nitric oxide in, 132–139 TNFa neutralising activity, 125
Extracellular SOD (SOD3), 58 corneal endothelium of, 63 immunohistochemical staining for,
58–59 in KC, 61
Fasþ T cells, 113 Fenton reaction, 34 Ferritin, 13 Fibulin-3, 168 Flavonoids, 14, 21
Flavoprotein (FP)-oxidoreductases, 86 FLICE-inhibitory protein (FLIP),
108, 114 Flupirtine, 191 FPLC
chromatography, 90–91
Index
Free radicals, 34 biology, 1–8
melanin interaction with, 150–152 Fuchs endothelial dystrophy, 61–63 Furocumarines, 85
Ganglion apoptosis, oxidative stress in, 76–78
Ganglion cell apoptosis, 74, 76–78
axons and glaucoma, 74–75 death in glaucoma, 72–74
Gene expression, and cell signaling, 8 Ginkgo biloba extracts (GBE), 97–100,
183, 185 Ginkgolide A, 100 Ginkgolide B, 99–100 Ginkgolide J, 99 Glaucoma, 179, 188
ganglion cell death in, 72–74 initiation for loss of vision in patients
of, 72–73 mitochondria and, 74–75 oxidative stress
in ganglion apoptosis, 76–78 involvement in, 71–78
and raised IOP, 75–76 pathogenesis, 71–78
plasma analysis in POAG for, 75 retinal ganglion cell axons and, 74–75 risk factors in, 72–73
Glutamate-induced cytotoxicity, 99 Glutamate-induced neurotoxicity, 100 g-Glutamylcysteine synthetase (GCS),
47–48 g-Glutamylcysteinylglycine (GSH). See
Glutathione
Glutathione disulfide (GSSG), 4, 39, 46–52
Glutathione (GSH), 4, 13–14, 71–72, 75–76, 98, 100, 164, 184. See also Cellular glutathione
oxidative stress and, 76 structure, 45–46
Glutathione peroxidase, 13, 35, 179, 190 Glutathione reductase, 13
Index
Glutathione S-transferase isoenzymes, 75 Glutathione S-transferases (GSTs), 47, 50,
95
Gluthathione redox cycles, 35 Glycaemia, 161
GPx activity, 161–162 Green tea, 160 Griseofulvin, 85
GSH peroxidase. See Glutathione peroxidase
Hard exudates, 168
Health and disease, nitric oxide related oxidants in, 33–41
Herbal extracts, effect on cataract, 97–100
HIF-1, 12 HTRAI, 168
Human RPE melanin, 154–155. See also Retinal pigment epithelium (RPE)
Hydrogen peroxide, 12, 33–35, 71–72, 75, 111, 171–172, 179, 183, 205
in cell signaling and gene expression, 8 Hydroperoxide, 72
6-hydroxykynurenic acid (6-HKA), 99 Hydroxyl radical, 12, 33–34, 71–72, 179,
183, 205 Hyperglycaemia, 161
Hypericum perforatum extracts, 97 Hypochlorite, 12
Hypochlorous acid, 12, 34–35 Hypoglycaemia, 181 Hypoxia, 177–178
IL-1, 109
IL-1b, 15, 110–111
IL-2, 110–112, 122–123, 127
IL-4, 15, 107, 109, 112–113
IL-6, 110–111
IL-8, 111
IL-10, 107, 112, 114, 123
IL-12, 123
IL-17, 113
IL-23, 113
213
Inducible NO synthase (iNOS or NOS2), 108–114, 185, 187
immunohistochemical analysis
of macrophages during EAU, 123–124
INF-a, 109
INF-g, 107, 109–114, 121–128 stimulation in EAU and autocrine
signaling, 126–127 Inflammatory eye diseases, corneal
endothelial cells loss in, 63–64 Interferon-gamma. See INF-g Interleukins 4. See IL-4
Interleukins 1b. See IL-1b Interphotoreceptor retinoid-binding
protein (IRBP) peptide 1–20, 122
Intraocular pressure (IOP), 71–72, 75–76 Intravascular ultrasonography study
(IVUS), 18
Intrinsic light reactions, and cataract, 90 IRBP. See Interphotoreceptor retinoid-
binding protein (IRBP) peptide Iron II+ oxidation process, 82 Ischemia, 177–178
retina and brain resistance to, 179–181. See also Retinal ischemia
Ischemic cascade, 188
Janus protein tyrosine kinases, 12 Juglone, 86
Kelch-like ECH-associated protein 1 (Keap 1), 14
Keratoconus (KC), 60–61 a-Keto-S-methyl-butyric acid (KMB), 90 Kynurenic acid, 99
L-arginine, 112, 140, 184, 186 L-citrulline, 184 L-3,4-dihydroxyphenylalanine (L-DOPA),
198–200
LDL oxidation, effects on cataract, 96–98
214
LDL protection, cooperative effects of rutin and ascorbate in, 97–98
Lipid peroxidation, 99 radicals, 34–35
Lipofuscin, 169–172 photoreactivity of, 169–170
Lipoic acid, 13–14, 160, 183, 191 L-NAME, 112, 187
L-tyrosine, 198, 201 Lutein, 160, 164, 169, 171
Macrophage cultures, cytokine stimulation of, 122–123
Macular degeneration, ROS role, 167–172 Manganese superoxide dismutase, 40 Mannitol, 184, 191
Melanin, 169
biosynthesis, 147–152, 197–198 and oxidative reactions, 147–155 properties
antioxidant properties, 150–152 for photoprotection, 147–152 pro-oxidant and phototoxic action,
153–155
rate constants of interaction with free radicals and singlet oxygen, 150–151
Melanogenesis, 148
Melanosomes, 148 photoreactivity of, 171 in RPE cells, 205
Menadione (2-methyl-1,4-naphthoquinone) glutathione levels in cells exposed to, 52 Michael addition of thiols/thiolates to, 51 redox cycling of, 50–52
Metalloproteins, 40 Metallothioneins, 71–72
Michael addition of thiols/thiolates, to menadione, 51
Mitochondria, 22, 140–142 antioxidant systems, 4
cellular sources of superoxide anion, 2, 12 features and cell function, 5–6 generation of signaling molecules, 6–8 and glaucoma, 74–75
location and function of cytochrome c in, 141–142
Index
Mitochondrial Manganese-containing SOD (SOD2), 58
Mitochondrial respiratory chain, 6–7 Mitochondrial SOD, 35 Mitogen-activated protein kinases, 12 Mitosis, 58, 62
Monobromobimane (mBBr), 48–49 Muller cells, 112, 163, 183, 186 Myocardial contractile failure, 40 Myricetin, 99
N-acetyl cysteine, 160 NADPH oxidase, 2, 12, 36, 94
NAD(P)H oxidoreductases (diaphorases), redox substrates of, 87
NADPH-quinone reductase, 95 Naphthoquinones, 86
Neural cell apoptosis, 160–161 Neurodegenerative disorders, 11 Neuronal hypoxia, 98
Neuronal NO synthase (nNOS or NOS1), 108, 186
NFkB, 12, 109, 185 Nitrated retinal proteins
identification of, 133–137 localization in EAU, 137–139
Nitrate-respiration, 82
Nitric oxide, 12, 34–35, 71–72 biological effects, 109
in cell signaling and gene expression, 8 in EAU, 107–114, 132–139
pathogenesis, 111–113 pathology, 108–111
TNF activation and, 121–128 effects on immune function, 108–109 generation of RNS and, 33
induced tissue damage, 113–114 induce protein S-glutathionylation, 39 induction in EAU, 111–113 quantification of synthesis of, 123 related oxidants in health and disease,
33–41
therapeutic strategies to reduce tissue damage by, 113–114
univalent oxidation of, 2–3
Nitric oxide synthases (NOS), 37, 108–114, 132, 140, 142, 163, 184, 186
Index |
215 |
Nitrofuran, 86
Nitrogen, oxidation of, 2–3 Nitrosyl radical, 182 NMDA-receptors, 99 NOS2 KO mice model, 111 NOS uncoupling, 37
Nrf-2-Keap1-ARE activators, 20 NSAIDs (non-steroidal anti-inflammatory
drugs), 94
Ocular diseases, and ROS, 94 Ophthalmic artery occlusion, 179 Oxidants, in corneal diseases, 55–65 Oxidative reactions, and melanin,
147–155 Oxidative stress
and atherosclerosis, 15–16 concept of, 1–2, 71
in ganglion apoptosis, 76–78 glutathione and, 76
involvement in glaucoma pathogenesis, 71–78
as neuroprotective strategy in retinal ischemia, 190–191
in pathogenesis of retinal ischemia, 177–192
and raised IOP, 75–76
reduction in retinal disease, 197–206 ROS and RNS and, 33
Oxygen toxicity, 82
univalent reduction of, 2–3 Oxygen stress
cataract protection from, 94–96 by detoxifying enzymes, 94–95 by phenolic derivatives, 95–96
Paraquat, 86, 171 Parkinson’s disease, 40, 97
Pathogen-associated molecular pattern (PAMP), 127
Pecking order principle, 96–97 Penetration rates, determination of, 91–94 Penicillin, 198
Peroxiredoxins, 13 Peroxyl radical, 71–72
Peroxynitrite, 12, 34–35, 72, 111–112, 179, 182
and ocular inflammation, 131–142 role in EAU, 139–142
scavengers and diabetic retinopathy, 160–162
Phacoemulsification cataract surgery, corneal endothelial cell loss after, 64–65
Phagocytosis assay for, 199
induced tyrosinase expression, 204 of ROS, 112, 198, 201, 203–204
Phenolic redox reactions, 96 Phenothiazines, 85 Pheomelanin, 148, 153 Phosphoglycerate mutase, 140 Phosphoinositide-3-kinase, 12 Phospholipase C-g1, 12 Photo-ageing, 149 Photodynamic drugs, 84–85
Photoprotection, melanin properties for, 147–152
Photoreactivity
of lipofuscin, 169–170 of melanosomes, 171 of retina, 168–169
Photoreceptor cells, 140 Photosystem I and II, 81–82 Photothrombosis retinal ischemia
model, 181
Phototoxic action, of melanin, 153–155 Polyphenols, 13–14, 81
Porphyrin, 169
Postranslational modifications in proteins by ROS and RNS, 38. See also Protein
post-translational modifications Primary open-angle glaucoma (POAG),
71, 75 Progesterones, 85
Pro-oxidant, properties of melanin, 153–155
Propolis, 99 Protein
glycosylation, and cataract, 87–89 Protein post-translational modifications by reactive oxygen and nitrogen
species, 3–4
216
[Protein post-translational modifications] by ROS and RNS, 37–41
S-Glutathionylation, 37–39 S-nitros(yl)ation, 38–40 tyrosine nitration, 38,
40–41 Pycnogenol, 99, 160 Pyridorin, 98 Pyridoxamine, 98
Pyrroloquinolin quinones (PQQ), 86
Quercetin, 99
Radiation-induced cataract, 100 Reactive nitrogen species (RNS).
See also ROS and RNS generation of, 3, 33
postranslational protein modifications, 33–34
protein post-translational modifications by, 3–4
Reactive oxygen species (ROS). See also ROS and RNS
AMD and, 167–172 cell damage by, 179
and corneal diseases, 55, 63–65 intracellular concentrations of, 71 mediated cell damage, 12
ocular diseases and, 94 phagocytosis of, 112, 198, 201,
203–204
and photoreactivity of lipofuscin, 169–170 melanosome, 171 retina, 168–169
protein post-translational modifications by, 3–4
RPE susceptibility and adaptation to, 171–172
signaling pathways, 12 sources, 12–13, 77 specific removal of, 5
Redox cell signaling, 3 Reductive events, and cataract,
86–87 Respiratory burst, 83
Index
Retina
photoreactivity of, 168–169 resistance to ischemia, 179–181.
See also Retinal ischemia tyrosine-nitrated proteins in, 138, 142
Retinal ganglion cell axons, 71, 74–75 and glaucoma, 74–75
Retinal ischemia
counteracting oxidative stress as neuroprotective strategy, 190–191
events associated with, 188–189 free radical role, 182–185 model of, 179–180
neurological mechanisms, 181–182 nitric oxide free radical in, 186–187 ocular diseases implicated in, 178 oxidative stress role in pathogenesis
of, 177–192
therapeutic intervention strategies for, 190
Retinal myeloid cell isolation, 122 Retinal pigment epithelium (RPE),
110–112, 153–155, 185, 197–204 susceptibility and adaptation to ROS,
171–172
Retinal proteins in uveitis, nitration of, 132–135
Riboflavine, 83
ROS and RNS characteristics of, 33–35 formation of, 35–37 oxidative stress and, 33
postranslational modifications, 38 protein modification produced, 37–41
S-Glutathionylation, 37–39 S-nitros(yl)ation, 38–40 tyrosine nitration, 38, 40–41
sources, 12–13, 36 Rotterdam study, 168 RPE65, 168
Scavenger receptors (SRA), 15 Selenite-induced cataract, 99 Selenium, 160
Sensory retinal detachment, 168 S-Glutathiolation. See S-glutathionylation
Index
S-Glutathionylation, 3–4, 34, 37–39 Signaling molecules, mitochondrial
generation of, 6–8 Singlet oxygen, 71–72, 83, 86
melanin interaction with, 150–152 S-nitrosation. See S-nitros(yl)ation S-nitros(yl)ation, 3, 34, 38–40 Sodium arsenite, 171
Staurosporine (ST)-induced neuronal apoptosis, 99
STNFr-Ig therapy, 125–126 Streptomycin, 198 Subarachnoid hemorrhage, 99 Sulfonamides, 85
Sulfonic urea, 85
Superoxide anion, 12, 34, 71–72, 75, 205 in cell signaling and gene expression, 8 in EAU, 132–139
sources of, 2, 33
Superoxide dismutases (SODs), 13, 34–35, 57–59, 71–72, 76, 95, 99, 140, 160, 168, 172, 179, 183, 190–191
Taurine, 160
T cell apoptosis, 113–114 Tertbutylhydroperoxide, 171 Tetracyclines, 85
TGF-b, 107, 109, 111–112, 122–125 Th1 cytokines, 107, 110, 112, 124 Th2 cytokines, 108–109, 112 Thiol-disulfide oxidoreductases, 13 Thioredoxin, 183
T lymphocytes, 110
TNF-a, 76, 109–110, 113–114, 121, 122–128, 142
TNFRp55-/- mice, 122, 126–127
role in autocrine signaling following IFN g stimulation in EAU, 126–127
a-Tocopherol, 13–15, 17–19, 21, 96, 161, 171, 190
b-Tocopherol, 15 d-Tocopherol, 15 g-Tocopherol, 15
Toxic lipoprotein degradation, 95 Transferrin, 13
Transition metal catalyzed oxidations, 88
217
Triacetylphenolisatin, 85 Trimetazidine, 191 Trolox, 57, 160
Tumour Necrosis Factor-alpha (TNF-a). See TNF-a
Tyrosinase
antibody staining in bovine RPE cells, 201 DOPA oxidase activity of, 200–201 electron-microscopical localization of,
199–201 functions, 205–206
immunocytochemistry, 203 immunodetection of, 199–200 phagocytosis-induced expression,
204–205
rod outer segments isolation, 199 ROS impact on activity of, 204 tyrosine hydroxylase activity of,
200–201, 203 Tyrosine nitration, 38, 40–41
Ubiquinol, 13–14 Ubisemiquinone, autoxidation of, 2 Univalent reduction of oxygen,
mechanisms, 2–3 Uric acid, 13–14, 190
Uveitis, nitration of retinal proteins in, 132–135
VCAM-1, 15 Vitamin A, 71–72
Vitamin C, 13–15, 17, 21, 57, 59, 81, 98–99, 160, 168
Vitamin D, 71–72
Vitamin E, 13–15, 17, 19, 21, 57, 71–72, 81, 98, 168, 183, 191
Voltage dependent anion channels (VDAC), 7
Xanthine oxidase, 12, 36, 56, 185 Xanthurenic acid, 85–86
Zeaxanthin, 169, 171
Zeta-crystallin, 95
Zinc, 160
Ophthalmology
about the book…
Free radicals are molecules with an unpaired electron in the outer shell or an electron that was damaged from either attack or from a poor splitting bond. After a free radical is formed it will continue to attack other molecules, which usually results in the damage of tissue or destruction of a healthy cell. Free radicals arise normally through metabolism. However, sometimes the body’s immune system will create them on purpose to neutralize viruses and bacteria. Free radicals are implicated in many ophthalmic disorders including uveitis, optic nerve damage, retinal ischemia, and macular degeneration. Free Radicals in Ophthalmic Disorders presents the most current knowledge pertaining to the role of free radicals/oxidants in ocular disorders, and the use of antioxidants in the prevention of these disorders.
Written by today’s leading ocular scientists and clinicians Free Radicals in Ophthalmic Disorders
•gives comprehensive coverage of the role of free radicals/oxidants in ocular disorders
•covers the use of antioxidants to prevent oxidative stress and ocular tissue damage
•examines external factors that may result in the stimulation and heightened occurrence of free radicals/oxidants
about the editors...
MANFRED ZIERHUT is Associate Professor of Ophthalmology, University Eye Hospital, Tubingen, Germany. Dr. Zierhut received his M.D. from the University of Hannover, Germany, and has published 102 articles, co-authored 24 books, and completed over 3000 surgeries in ophthalmology.
ENRIQUE CADENAS is Professor of Pharmacology and Pharmaceutical Sciences and Associate Dean of Research Affairs at the University of Southern California School of Pharmacy, Los Angeles. He is also Professor of Biochemistry at the Keck School of Medicine, University of Southern California. Dr. Cadenas received his M.D. in Medicine and his Ph.D. in Biochemistry/ Biophysics from the University of Buenos Aires, Argentina, and his main focus of research, besides free radicals, covers oxidative stress, mitochondrial dysfunction, aging, and neurodegenerative diseases. He is the author of over 200 peer-reviewed papers.
NARSING A. RAO is Professor of Ophthalmology and Pathology at the Keck School of Medicine, and the first chair holder of the Stieger Vision Research Endowed Chair of Doheny Eye Institute, University of Southern California, Los Angeles and Director of the Intraocular Inflammation/ Uveitis Service and the Director of the Ophthalmic Pathology Laboratories at the Doheny Eye Institute. Dr. Rao was awarded his M.D. from Osmania University and completed his internship at Osmania General Hospital, Hyderabad, India. Following a year of rotating internships in upstate New York, he completed two residencies in pathology and ophthalmology at Georgetown University, Washington, D.C. and a fellowship in ophthalmic pathology at the Armed Forces Institute of Pathology, Washington, D.C. Dr. Rao is involved in both research aspects and the clinical treatment of inflammatory ocular diseases affecting the uveal tract, vitreous, retina and sclera and immune disorders affecting the eye. Dr. Rao has published over 375 peer-reviewed articles in U.S. and international journals and has authored or edited four books.
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